Final answer:
The weight of the water in the tank is 14,976 lb.
Step-by-step explanation:
To find the weight of the water in the tank, we need to calculate its volume first. The volume of a rectangular tank is given by multiplying its length, width, and height. In this case, the volume of the tank is 8 ft (length) × 6 ft (width) × 5 ft (height) = 240 ft³.
Since the density of water is approximately 62.4 lb/ft³, we can use this value to calculate the weight of the water. The weight is given by the volume of water multiplied by its density: 240 ft³ × 62.4 lb/ft³ = 14,976 lb.
Therefore, the weight of the water in the tank when it is full is 14,976 lb.