Stupid question : trees are effectively corals, pumping sugar from air with light and getting water + trace minerals from the ground. Wood/cork is basically the

Stupid question : trees are effectively corals, pumping sugar from air with light and getting water + trace minerals from the ground. Wood/cork is basically the dead mmtisdue extruded by the living outer layer. What would it take to "unfold" something like a tree into a continously harvest able square with leaves and hydroponic roots still attached?