Hello,
1) Theme Options > Styling > Custom CSS added the following code in appropriate areas http://prntscr.com/de29o9
.post-type-archive-product .sidebar-widget.widget_top_rated_products {
display: none;
}
If you want to change sidebar position for mobile you can do this in Theme Options http://prntscr.com/de2ad3
2) You can do this only if you use custom footer. I have created Static Block – Footer and added this block into your footer widget area. Go to Static Blocks > edit Footer static Block and columns http://prntscr.com/de2va4
Regards