The electronics to drive the right frequency for efficiently heating ferrous metals (about 25KHz) are affordable. The electronics to drive the much higher (at least double?) frequencies for non-ferrous metals safely are not so affordable. It would add more to the cost than a new set of cookware. Cast iron is the king of cookware and works great on IH, anyway!
You can put a few mm thick piece of steel on top of the hob and then set your copper pan on that, as a workaround.
You can put a few mm thick piece of steel on top of the hob and then set your copper pan on that, as a workaround.