The total surface area of a solid cube is 294 $$cm^{2}$$. It is melted and recast into a right circular cylinder of radius 7 cm.
What is the height (in cm, correct io one decimal place) of the cylinder? (Taken $$\pi = \frac{22}{7}$$)

A

4.5

B

2.2

C

1.8

D

3.1