Answer
2 N. Yes, he could do it.
Work Step by Step
Find the pressure.
$$Pressure = (weight \;density)\times(depth)$$
$$= 10000 \frac{N}{m^{3}} \times (2 m) = 20000 \frac{N}{m^{2}}$$
Now find the force by multiplying pressure by the area. Remember that $1 cm^{2} = 10^{-4} m^{2}$.
$$F = 20000 \frac{N}{m^{2}} \times (10^{-4} m^{2}) = 2 N$$
This is a small force.
