Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: What is the size of the tray? Our old one is 15 3/8" new one in the store is only 14" want the larger one.
Document: We've had this same model for 14 years. It broke down a few years ago and we got it fixed, but when it recently broke down again, we didn't want to invest more money in a 14-year-old machine, so we are buying a new one.The age of our old one is a clue that this is not the latest technology. On the other hand, we have black appliances and there is very little choice in black convection-microwaves.
Okay, this little powerhouse warms my bagel and melts butter and boils water and so forth, but this weekend, it saved my life too :-)I went to the grocery store at 8:30 p.m. for a turkey to serve at 1:00 the next day. The package said it would take 3-4 days to defrost! Threw it in my "microwave" on the compu-defrost setting, and it defrosted my turkey lickity split.
We had one of Sharp's first micro convection ovens, used it for a number of years, and "lost" it when when it was included as a contingency on a purchase offer for our house! As giving up a 7-8 year-old microwave in order to sell a house seemed like a good trade off, off it went!In the interim (about 5 years or so), we've owned 3 different microwaves, inclusive of one in an RV (all non-convection).
This Sharp will not cook Pop-Corn, Convection will not get above 150 deg. Takes 4 minutes to heat a slice of pizza.But it will heat the plate !! Taking any plates out will require Asbestos Gloves !! My unit is 15 months old and I am going out today to buy a new one. ( Not a Sharp )
Like New; Very Pleased, We have 3 of these and they are the best on the market.. 15 pound Turkey in 90 minutes!!! !
We bought this to replace a 21-year-old Sharp convection/microwave that was built into our kitchen when we bought our house. It finally failed, and we didn't think we'd be able to easily replace it, but this model is almost identical in size and function to the old one. We simply slid the old one out and slid the new one in, and we were back in business. Very happy . . .
I have the same unit in black, which is a little more expensive, just for the color. This unit is extremely heavy. It took two of us, and a chair with wheels, to move it 15 feet and get it onto the counter. I've had it one month and it stopped working. If I want in home service I have to pay. It has to be carried to a service center. It weighs more than my 32&quot; TV.
I bought this to replace the oven I have had for 14 years. It is very similar in many ways to my old one . This has made it easy to use.I hope it lasts as long as the previous one.
Sir:MY wife and I were extreamly excited about ordering this Convection Microwave as it was the exact same model as the one we had. and we loved it.Have been very disappointed as the Wattage is not the same. The first one with a cup of water would be boiling in 1 min. This one, takes at least 2 minutes to heat at the same temp. and anything I want to reheat takes at least 3 min.Not sure what can be done at this point.
I had this same convection microwave for 20 years and had it fixed only about 3 times. So when I finally couldn't get parts for it any longer, I bought this one. It is the same size, the same brand and updated. It works great!
Answer: Not sure what you mean by the tray.  Do you mean the round tray that rotates inside the oven?  If so, and the measurement you're giving is the diameter of that rotating tray, mine measures 14.5"  Hope that helps.  I'm pretty sure it's the same as the old one we replaced.