Here's how to calculate the total force exerted on the boiler plate:

1. Convert Units:

* Area: 8 inches x 24 inches = 192 square inches

* Pressure: 30 psi (pounds per square inch)

2. Formula:

* Force = Pressure x Area

3. Calculation:

* Force = 30 psi * 192 square inches

* Force = 5760 pounds

Therefore, the total force exerted on the boiler plate is 5760 pounds.