Can molten Strontium and Barium Hydroxides be electrolysed to give the metals? Can strontium and barium hydroxides be electrolysed to give the metals? I've noticed they have relatively low melting points. What challenges would this present?
Expanding on @Oscar Lanzi comment: first, all the hydrogen (and half the oxygen) would be electrolyzed before then alkaline earth metals.  At that point, if kept liquid, then the $\ce{BaO}$ and $\ce{SrO}$ remaining would be split. That would not be easy, as the melting point of $\ce{BaO}$ is 2,196 K and that of $\ce{SrO}$ is 2,804K (though a eutectic mix of the oxides would be a bit lower).

[It's more efficient to dissolve the oxides in a halide salt. The electrolysis of $\ce{CaO}$ in $\ce{CaCl2}$ has been explored here and here.