Step 1 :Given a rectangular prism with length (l) = 6.2 cm, width (w) = 1 cm, and height (h) = 3 cm.
Step 2 :The surface area of a rectangular prism can be calculated using the formula: \(2lw + 2lh + 2wh\).
Step 3 :Substitute the given values into the formula: \(2(6.2)(1) + 2(6.2)(3) + 2(1)(3)\).
Step 4 :Simplify the expression to get the surface area: \(55.6\) square centimeters.
Step 5 :Final Answer: The surface area of the object is \(\boxed{55.6}\) square centimeters.