Final answer:
The standard serving size for sliced cheese is typically 1 ounce, which is roughly equivalent to one slice of cheese. When used for sandwiches, 1 sandwich is made with 1 slice of cheese.
Step-by-step explanation:
The standard serving size for sliced cheese, as indicated by common nutritional guides, is 1 ounce. While the specific number of slices this equates to can vary depending on the thickness of the slices, typically, 1 ounce can be approximated as one slice of cheese. In the context of preparing sandwiches, as provided by the reference information, 1 sandwich requires 1 slice of cheese along with 2 slices of bread, and with 11 slices of cheese, one can make 11 sandwiches.