According to the U.S. Mint , a penny has a mass of 2.5 grams, a nickel 5 grams, and a quarter 5 2/3 grams.
(a penny; has; a mass of 2.5 grams, a nickel 5 grams, and a quarter 5 2/3 grams)
a penny
has
a mass of 2.5 grams, a nickel 5 grams, and a quarter 5 2/3 grams