How do you float a ship with ping pong balls?

To float a ship with ping pong balls, you would need to fill the ship's hull with enough ping pong balls to displace a volume of water equal to the weight of the ship. The buoyancy created by the trapped air in the balls must offset the weight of the ship to keep it afloat. This method relies on the principle of buoyancy, where the upward force of the displaced water must be greater than or equal to the downward force of the ship's weight. However, the practical feasibility of using ping pong balls for this purpose would depend on the ship's size and weight, as it would require a substantial number of balls.