The lifting capacity of the elevator is 10 tons. How many sheets of iron can be loaded into the elevator if each sheet is 2.5 m

The lifting capacity of the elevator is 10 tons. How many sheets of iron can be loaded into the elevator if each sheet is 2.5 m long, 80 cm wide and 2 mm thick?

Given:
a = 3 m
b = 60 cm
s = 4 mm
P iron = 7.8 g / cm3
SI:
3m
0.6 m
0.004 m
7800 kg / m3
Decision:
V = abc
V = 3 × 0.6 × 0.004 = 0.0072 m3
m = P × V
m = 7800 × 0.0072 = 56.16 kg – weight of one sheet of iron
3000: 56.16 = 53.4188034188, but since we count only whole sheets of which we have 53
Answer: 53 sheets