Final answer:
Whipped egg whites can expand to approximately 6 times their original volume when whipped.
Step-by-step explanation:
When a whipped egg white is beaten, it incorporates air bubbles and increases in volume. The increase in volume is due to the proteins and water in the egg white forming a foam structure that traps and stabilizes the air bubbles. As the egg white is beaten, more air is incorporated, causing it to expand. The expansion can depend on various factors, but on average, whipped egg whites can expand to approximately 6 times their original volume.