It is better to first convert the meters into inches.
Since 1 meter = 39.37 inches, we have that:
5 meters * 39.37 = 196.85 inches
2 meters * 39.37 = 78.74 inches
Therefore, 5 meters by 2 meters = 196.85 inches * 78.74 inches = 15,499.97 or roughly 15,500 square inches