I think I would go with the veneer approach.
have you tested a charging dock to see if it will send the signal
through wood or any thickness of epoxy ?
as you can see, some of us are not on the same page as you.
(just thinking out loud here).
if the "theory" does work, it will be a very interesting project.
before getting too far into your project, I would suggest practicing
with different materials to see what works and doesn't work for you.
I would think that charging docks are like any other modern electronic gadget
these days ~ some are stronger (or weaker) than other models.
so this project will depend on your electronics as well as the thickness of the wood.
I googled: "Do all wireless chargers work the same"?
"any Qi charger, new or old, cheap or expensive, will "more or less"
do the job
when it comes to charging your phone. But not all chargers are made equal
, and things
like form factor, materials, size, and of course, how fast it can actually charge your phone
are all things to consider, especially for a product that’s looking to take up permanent residence on your desk or nightstand".
so, with that little bit of research (35 seconds) you can see that you will have several
hurdles to overcome and hoops to jump through in order to bring your "concept"
into a viable, working project.