Here, we report an integrated method, termed 3D print-and-plate, for fabricating architected electrodes composed of periodic 3D lattices with microscale struts (~20 µm filament diameter) that were coated conformally via gold plating to afford a sheet resistance of 40 mΩ sq -1 . Using these architected electrodes, we carried out 4D visualization experiments via electrochemical fluorescence confocal microscopy to assess their state of charge, encompassing electrochemical conversion, advection, and diffusion. Next, we numerically solved the governing equations for three lattice architectures, in which printed filaments (lattice struts) were strategically removed to alter the flow path and corresponding pressure drop.