You're not supposed to use your arms. You use your legs to pass a ball.
legs
forearms biceps
your thy and arms
butt muscle
The whole of the skeletal frame is used in the game. The joints in arms legs and back are the most stressed.
serving i think
your legs because you have to jump high enough
When serving a volleyball, you should hit the ball with the palm of your hand.
mainly leg muscules....some arm
spike
For all these sports the muscles of the legs are needed.
If your foot is on the serving line