Cayuga Hardwoods produces handcrafted jewelry boxes. A standard$-$size box requires $8$ board feet of hardwood in the finished product. In addition, $2$ board feet of scrap lumber are normally left from the production of one box. Hardwood costs $$4\mathrm{.}00$ per board foot, plus $$1\mathrm{.}50$ in transportation charges per board foot.

What is the standard quantity $($i$.$e$.$ board feet$)$ per box?