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.
A standard 13 x 9-inch pan typically yields about 12 to 15 servings, depending on how you cut the portions. For desserts like brownies or cakes, cutting them into smaller squares can increase the number of servings. Conversely, if you're serving a main dish like lasagna, you might opt for larger portions, resulting in fewer servings. Ultimately, the serving size will depend on the type of dish and the appetite of your guests.
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.
A liter typically contains around 4.2 cups of liquid. The number of servings in 1 liter would depend on the portion size per serving. For example, if a serving size is 1 cup, then there would be approximately 4 servings in 1 liter.
12