Final answer:
To calculate the capacity of a half-long, 600 hotel pan, you need to know the dimensions of the pan.
Step-by-step explanation:
The capacity of a half-long, 600 hotel pan refers to the amount of food that can be held in the pan. To calculate the capacity, you need to know the dimensions of the pan. Unfortunately, the term 'half-long' is not commonly used to describe hotel pans, so it's unclear what dimensions are being referred to. If you can provide more information about the dimensions of the pan, I can help you calculate the capacity.