The depth of the pan is not as important (most pans are between 1 and 4 inches deep), but it is the length and width that are more important in determining how many people a cake can feed.
You can use two cake recipes for that size pan.
You should get six 4x4 servings with a a 1x9 on the bottom ans a 1x13 on the side left over. So, basically 7 servings.
25 servings
80
10 to 15 servings
117
The order you get at Dominos is about an 8×8 pan size, and is supposed to be 9 servings, or you could eat it all by yourself if you believe in yourself.
9 inches x 9 inches = 81 one inch servings
The serving amount depends on how big the pieces are cut into.
12
It depends on what kind of food is in the can; peaches or chili, for example. As a rule of thumb you can figure 24-25 4 fl oz servings to a can. With something like peaches or apricots there may be fewer. The best way to know for sure is to read the nutritional label which will tell you what their suggested portion size is and how many portions there are to a can. You can then calculate how many servings there if you are serving a different portion size. Many manifactures post their nutritional labels online.
165 grams are in a serving size