Answer:
158 inches squared
Explanation:
I am calling them Inches instead of centimeters because the image only shows inches as the unit.
To find the surface area, you need to add up all the rectangles' areas (
) shown to get the sum surface area.
Sides A & D:

Sides B & F:

Sides C & E:
(You get 5 inches from the edges, if you fold it into a rectangular prism, the side would have dimensions of 3x5.)
Then, you add all of the sides together.

Your total surface area would be 158 in.