First find the area of each long side by multiplying the length and width: 8 inches * 6 inches = <<8*6=48>>48 square inches
Then do the same thing for each short side: 5 inches * 6 inches = <<5*6=30>>30 square inches
Now add the area of one long side, one short side, and one top/bottom together: 48 square inches + 30 square inches + 40 square inches = <<48+30+40=118>>118 square inches
Now double that quantity because there are two of each kind of side: 118 square inches * 2 = <<118*2=236>>236 square inches
#### 236