how does to ipad pro 10th gen charge the apple pencil 2.0

I don't think there's a 10th gen ipad pro as of yet, you might be referring to the new 10th gen iPad instead?

If you are then, if I'm not mistaken that iPad is compatible with the Apple Pencil 1.0, not the 2.0. Apple Pencil compatibility - Apple Support

To charge the Apple pencil 1.0 with the ipad 10th gen would require an separate additional adapter (USB-C to Lightning). This reason sparked memes in the tech community.

First, you are perhaps confusing your iPad models. The new tenth generation iPad (iPad10) is not a “Pro” models

The new iPad10 does not support the second generation Apple Pencil - as it lacks the magnetic/inductive charging dock required for pairing and charging the second generation Pencil.

Instead the iPad10 supports the first generation Pencil - and both pairs with and charges the Pencil via the iPad10’s USB-C port with the aid of a charging adapter. The charging adapter is now in included in the box of new first generation Apple Pencils - and as an accessory for those that have already purchased a compatible Pencil.

Here is Apple’s definitive compatibility list for Apple Pencil and iPad:

Apple Pencil compatibility - Apple Support