“That serves eight.”
For food, serve followed by a number indicates how many people a quantity feeds, as in This recipe serves four. Frank points out that a whole cake intended for eight is too much for two.
B2-35 / CEFR B2 / EPISODE 35
Changing the plan while keeping its purpose
SceneFrank has a backpack with sandwiches and water. Tina arrives at the park gate carrying a large cake box. Their picnic spot is at the top of the hill.

WORDS & CONTEXT
For food, serve followed by a number indicates how many people a quantity feeds, as in This recipe serves four. Frank points out that a whole cake intended for eight is too much for two.