Welcome to Android Central! Not all LG phones have the Clip Tray feature (which allows you to save multiple items to the clipboard). Check the phone's manual -- if there's no mention of a Clip Tray, then it only has the standard clipboard function, which can only hold one item at a time (and I'm not sure if it can hold something as big as a photo). Instead of trying to copy a photo to the clipboard, I suggest downloading the photo to your device.